Hello, I would like to calculate the critical moment in Abaqus in order to compare it with the critical moment (for lateral torsional buckling) obtained from analytical calculations. The two values do not match. I calculate the critical moment in Abaqus by multiplying the eigenvalue of the buckling mode with the applied load and then multiplying this load by the distance, Can someone help me understand why I have this problem?
Eng-Tips is the largest forum for Engineering Professionals on the Internet.
Members share and learn making Eng-Tips Forums the best source of engineering information on the Internet!
-
Congratulations dmapguru on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
critcal moment abaqus
- Thread starter hasanfal
- Start date
- Thread starter
- #3
I model a castellated beam with a length of 24 m with 2 concentrated loads in the third of the length and try to change parameters such as the opening size and examine what changes. That's why I would like to represent the deviation from critical moment analytically and numerically, but the deviation is very large, in abaqus the value of critical moment is 1270 kN.m and from analytical calculation 600 kN.m
- Status
